102500013 has 24 divisors (see below), whose sum is σ = 173435040. Its totient is φ = 53245920.

The previous prime is 102500009. The next prime is 102500023. The reversal of 102500013 is 310005201.

It is not a de Polignac number, because 102500013 - 2² = 102500009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102500023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30078 + ... + 33311.

It is an arithmetic number, because the mean of its divisors is an integer number (7226460).

Almost surely, 2^102500013 is an apocalyptic number.

It is an amenable number.

102500013 is a deficient number, since it is larger than the sum of its proper divisors (70935027).

102500013 is a wasteful number, since it uses less digits than its factorization.

102500013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63417 (or 63410 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 102500013 is about 10124.2290076825. The cubic root of 102500013 is about 467.9951009422.

Adding to 102500013 its reverse (310005201), we get a palindrome (412505214).

The spelling of 102500013 in words is "one hundred two million, five hundred thousand, thirteen".